US2961389A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for modifying polymers and products obtained thereby
Assignee: EIDP Inc
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Filing: 1957-12-10
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Granted: 1960-11-22
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Expires: 1977-12-10
Abstract
No abstract record available.
Inventors
- 👤 Hines Roger Arnold
- 👤 Busse Warren Froemming
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:52
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/28; B; B29; B29C; B29C71/00; B29C71/04; C08L; C08L101/00; B29C35/00; B29C35/02; B29C35/08; B29C35/0866; B29C2035/0872; B29C2035/0877; B29C2035/0883; B29K; B29K2023/00; B29K2023/04; B29K2023/06; B29K2027/00; B29K2027/12; B29K2105/00; B29K2105/0085; Y; Y10; Y10S; Y10S522/00; Y10S522/91; Y10S522/911
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
IN A PROCESS FOR IRRADIATING A POLYMER SELECTED FROM THE GROUP CONSISTING OF POLYCARBONAMIDES, POLYESTERS, NATRUAL RUBBER, BUTADIENE POLYMERS, AND HYDROCARBON POLYMERS OBTAINED BY THE POLYMERIZATION OF 1-OLEFINS HAVING TERMINAL VINYL GROUPS, WITH HIGH-ENERGY, IONIZING, PARTICULATE RADIATION HAVING AN ENERGY OF AT LEAST ABOUT 100 THOUSAND ELECTRON VOLTS, THE IMPROVEMENT WHICH COMPRISES INTIMATELY MIXING SAID POLYMER WITH FROM 0.1% TO 30% BY WEIGHT OF A FINELY-DIVIDED POLYMERIC PERFLUOROOLEFIN RESIN PRIOR TO SUBJECTING THE AFORESAID POLYMER TO SAID PARTICULATE IRRADIATION WHEREBY THE CROSSLINKING OF SAID POLYMER DURING IRRADIATION IS INCREASED.
Claim 2
Dependent Claim
89 words
IN A PROCESS FOR IRRADIATING A POLYMER SELECTED FROM THE GROUP CONSISTING OF POLYCARBONAMIDES, POLYESTERS, NATRUAL RUBBER, BUTADIENE POLYMERS, AND HYDROCARBON POLYMERS OBTAINED BY THE POLYMERIZATION OF 1-OLEFINS HAVING TERMINAL VINYL GROUPS, WITH HIGH-ENERGY, IONIZING, PARTICULATE RADIATION HAVING AN ENERGY OF AT LEAST ABOUT 100 THOUSAND ELECTRON VOLTS, THE IMPROVEMENT WHICH COMPRISES INTIMATELY MIXING SAID POLYMER WITH FROM 0.1% TO 30% BY WEIGHT OF A FINELY-DIVIDED POLYMERIC PERFLUOROOLEFIN RESIN PRIOR TO SUBJECTING THE AFORESAID POLYMER TO SAID PARTICULATE IRRADIATION WHEREBY THE CROSSLINKING OF SAID POLYMER DURING IRRADIATION IS INCREASED.
References Cited (Backward Citations)
GB750923A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-22 | 1964-05-23 | 1964-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-22 | 1968-05-23 | 1968-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-22 | 1972-05-23 | 1972-11-22 | $7700.00 | Window Closed / Lapsed |